Development and application of omphacite geo-speedometer: An integrated study of natural omphacitic pyroxenes

2012 Fiscal Year Final Research Report

• Project/Area Number: 22654058
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Single-year Grants
• Research Field: Geology
• Research Institution: Okayama University
• Principal Investigator: TSUJIMOTO Tatsuki 岡山大学, 地球物質科学研究センター, 准教授 (00436833)
• Project Period (FY): 2010 – 2012
• Keywords: オンファス輝石 / ひすい輝石 / エクロジャイト / 微細構造 / 組成累帯構造 / 地質速度計

Research Abstract

Submicron-scale structures of natural omphacitic pyroxenes in high-grade blueschists and low-temperature hydrous eclogites were examined using high resolution microscopy and laser Raman spectroscopy. This study confirmed that the anti-phase domain size of undeformed omphacite within garnet porphyroblast had high potential for geospeedometer. However, inorder to apply this method, further understanding of disequilibrium growth of omphacite and garnet in low-temperature metamorphic rocks are required.

Research Products

• [Journal Article] Plate tectonic gemstones (2013)
  • Author(s): Stern R. J., Tsujimori T., Harlow G. E., Groat L. A.
  • Journal Title: Geology Volume: (in press)
  • DOI: doi:10.1130/G34204.1
  • Peer Reviewed
• [Journal Article] Rheological contrast between glaucophane and lawsonite in naturally deformed blueschist from Diablo Range (2013)
  • Author(s): Kim D., Katayama I., Michibayashi K., Tsujimori T
  • Journal Title: California. The Island Arc Volume: v. 22, no. 1 Pages: 63-73
  • DOI: doi:10.1111/iar.12003
• [Journal Article] Petrogenetic relationships between jadeitite and associated high-pressure and low-temperature metamorphic rocks in worldwide jadeitite localities: A review (2012)
  • Author(s): Tsujimori T., Harlow G. E
  • Journal Title: European Journal of Mineralogy Volume: v. 24, no. 2 Pages: 371-390
  • DOI: doi:10.1127/0935-1221/2012/0024-2193
  • Peer Reviewed
• [Journal Article] Introduction - Jadeitite: new occurrences, new data, new interpretations (2012)
  • Author(s): Harlow G. E., Tsujimori T., Sorensen S. S
  • Journal Title: European Journal of Mineralogy Volume: v. 24, no. 2 Pages: 197-198
  • DOI: doi:10.1127/0935-1221/2012/0024-2196
  • Peer Reviewed
• [Journal Article] Tectono-metamorphic evolution of high P/T and low-P/T metamorphic rocks in the Tia complex, southern New England fold belt, eastern Australia: Insights from K-Ar chronology (2012)
  • Author(s): Fukui S., Tsujimori T., Watanabe T., Itaya T
  • Journal Title: Journal of Asian Earth Sciences Volume: v. 59, no. 1 Pages: 62-69
  • DOI: doi:10.1016/j.jseaes.2012.05.022
  • Peer Reviewed
• [Journal Article] Minerals, rocks, and mountains: Linking petrology, geochemistry, and geochronology (2012)
  • Author(s): Rehman H. U., Tsujimori T., Tsai C. H.
  • Journal Title: Journal of Asian Earth Sciences Volume: v. 59, no. 1 Pages: 1-2
  • DOI: doi:10.1016/j.jseaes.2012.07.015
• [Journal Article] Space environment of an asteroid preserved on micro-grains returned by the Hayabusa spacecraft (2012)
  • Author(s): Nakamura E., Makishima A., Moriguti T., Kobayashi K., Tanaka R., Kunihiro T., Tsujimori T., Sakaguchi C., Kitagawa H., Ota T., Yachi Y., Yada T., Abe M., Fujimura A., Ueno M., Mukai T., Yoshikawa M., Kawaguchi J
  • Journal Title: Proceedings of the National Academy of Science Volume: v. 109, no. 11 Pages: E624-E629
  • DOI: doi:10.1073/pnas.1116236
• [Journal Article] Sm-Nd and Lu-Hf isotope geochemistry of the Himalayan high- and ultrahigh-pressure eclogites, Kaghan valley, Pakistan (2012)
  • Author(s): Rehman H. U., Kobayashi K., Tsujimori T., Ota T., Yamamoto H., Nakamura E., Kaneko Y., Khan T
  • Journal Title: inPanagiotaras D., ed., Geochemistry - Earth's System Processes: Rijeka, Croatia, InTech Pages: 105-126
  • DOI: doi:10.5772/32859
• [Journal Article] Evolution of the Sanbagawa and Shimanto high-pressure belts in SW Japan: Insights from K-Ar (Ar-Ar) geochronology (2012)
  • Author(s): Itaya T., Tsujimori T., Liou J. G
  • Journal Title: Journal of Asian Earth Sciences Volume: v. 42, no. 6 Pages: 1075-1090
  • DOI: doi:10.1016/j.jseaes.2011.06.012.
  • Peer Reviewed
• [Journal Article] In situ ion-microbe determination of trace element partition coefficients for hornblende, plagioclase, orthopyroxene and apatite in equilibrium with natural rhyolitic glass, Little Glass Mountain Rhyolite, California (2011)
  • Author(s): Brophy J. G., Ota T., Kunihiro T., Tsujimori T., Nakamura E
  • Journal Title: American Mineralogist Volume: v. 92, no. 11-12 Pages: 1838-1850
  • DOI: doi:10.2138/am.2011/3857
  • Peer Reviewed
• [Journal Article] Multiple origins of zircons in jadeitite (2010)
  • Author(s): Fu B., Valley J. W., Kita N. T., Spicuzza M. J., Paton C., Tsujimori T., Brocker M., Harlow G. E
  • Journal Title: Contributions to Mineralogy and Petrology Volume: v. 159, no. 6 Pages: 769-780
  • DOI: doi:10.1007/s00410-009-0453-y
• [Journal Article] 日本列島に記録された古生代高圧変成作用-新知見とこれから解決すべき問題点- (2010)
  • Author(s): 辻森樹
  • Journal Title: 地学雑誌 Volume: v. 119, no. 2 Pages: 294-312
  • DOI: doi:10.5026/jgeography.119.294
  • Peer Reviewed
• [Journal Article] 造山帯中の高圧低温変成岩を伴う蛇紋岩メランジュ (2010)
  • Author(s): 辻森 樹
  • Journal Title: 月刊地球 Volume: v. 32, no. 3 Pages: 189-195
• [Presentation] 古生代前期深成岩-変成岩類の年代学的再検討 (2012)
  • Author(s): 宮下 敦, 辻森 樹
  • Organizer: 日本地質学会第119年学術大会
  • Place of Presentation: 大阪
  • Year and Date: 2012-09-16
• [Presentation] Petrogenetic relationships between jadeitite and associated high-pressure and low-temperature metamorphic rocks in worldwide jadeitite localities (2011)
  • Author(s): Tsujimori T., Harlow G.E
  • Place of Presentation: San Francisco (U.S.A.)
  • Year and Date: 2011-12-07
• [Presentation] Relative strength between glaucophane and lawsonite in naturally deformed blueschist from Daiblo Range (2011)
  • Author(s): Kim D., Katayama I., Michibayashi K., Tsujimori T
  • Organizer: AGU Fall Meeting
  • Place of Presentation: San Francisco (U.S.A.)
  • Year and Date: 2011-12-07
• [Presentation] Rare Earth Element - SiO2 systematics of island arc lower crust amphibolite migmatite from Yakuno Ophiolite (2011)
  • Author(s): Pu X. F., Brophy J. G., Tsujimori T
  • Organizer: AGU Fall Meeting
  • Place of Presentation: San Francisco (U.S.A.)
  • Year and Date: 2011-12-07
• [Presentation] Zircon chronology and inclusions study: a case study from the Himalayan UHP eclogites, Kaghan Valley (2011)
  • Author(s): Rehman H. U., Kobayashi K., Tsujimori T., Ota T., Nakamura E., Hirajima T., Yoshida K., Terabayashi M.
  • Organizer: 9th International Eclogite Conference
  • Place of Presentation: Marianske Lazne (Czech Republic).
  • Year and Date: 2011-08-07
• [Presentation] Initial analysis of the Hayabusa recovery materials: Petrographical characterization (2011)
  • Author(s): Tsujimori T., Kunihiro T., Kobayashi K., Tanaka R., Moriguti T., Ota T., Kitagawa H., Sakaguchi C., Makishima A., Nakamura E., Abe M., Fujimura A., Mukai T.
  • Organizer: 日本地球惑星科学連合大会
  • Place of Presentation: 千葉県幕張市
  • Year and Date: 2011-05-25
• [Presentation] Eclogites and related metamorphism in the North America-Caribbean plate boundary: An example from the Motagua fault zone, Guatemala (2010)
  • Author(s): Tsujimori T., Hernandez-Pineda G. A
  • Organizer: AGU Fall Meeting
  • Place of Presentation: San Francisco (U.S.A.).
  • Year and Date: 2010-12-18
• [Presentation] Ongoing collision-type orogeny in Timor-Tanimbar island chain, eastern Indonesia (2010)
  • Author(s): Kaneko Y., Maruyama S., Kadarusman A., Ota T., Ishikawa M., Tsujimori T., Ishikawa A., Okamoto K
  • Organizer: AGU Western Pacific Geophysics Meeting
  • Place of Presentation: Taipei, Taiwan
  • Year and Date: 2010-06-23
• [Presentation] Ion microprobe U-Pb geochronology and trace element geochemistry of the zircon from the Himalayan high- and ultrahigh-pressure eclogites, Kaghan Valley of Pakistan (2010)
  • Author(s): Rehman H. U., Kobayashi K., Tsujimori T., Nakamura E., Yamamoto H., Khan T
  • Organizer: AGU Western Pacific Geophysics Meeting
  • Place of Presentation: Taipei (Taiwan)
  • Year and Date: 2010-06-23
• [Presentation] In-situ geochemistry of garnet peridotites of Lashaine, Tanzania craton: Re-fertilization in sub-cratonic lithospheric mantle (2010)
  • Author(s): Sarbadhikari A.B., Tsujimori T., Moriguti T., Kunihiro T., Nakamura E.
  • Organizer: Goldschmidt Conference
  • Place of Presentation: Tennessee, USA.
  • Year and Date: 2010-06-15
• [Presentation] Paleozoic subduction metamorphism in Japan: A review and more (2010)
  • Author(s): 辻森 樹
  • Organizer: 日本地球惑星科学連合大会
  • Place of Presentation: 千葉県幕張市
  • Year and Date: 2010-05-23